## Question

One litre of a gas is at a pressure of 10^{–6} mm of Hg at 25^{o}C. How many molecules are present in the vessel?

### Solution

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#### SIMILAR QUESTIONS

7.4 gram of a metal hydroxide on heating gives 5.6 g of metal oxide. Calculate the equivalent weight of the metal.

How many molecules are there in 10 litres of gas at a pressure of 75 cm at 27 degree Celsius?

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An analysis of a pyrex glass showed 12.9% B_{2}O_{3}, 2.2% Al_{2}O_{3}, 3.8% Na_{2}O, 0.4% K_{2}O and remaining is SiO_{2}. What is the ratio of Si to B atoms in the glass?

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